Select True or False for the following statements about electromagnetic waves. R
ID: 1631979 • Letter: S
Question
Select True or False for the following statements about electromagnetic waves. Radio waves travel in vacuum at a lower speed than the visible light. X-rays travel in vacuum at a higher speed than the visible light. The Earth's atmosphere is quite transparent to infrared radiation. Gamma rays can be produced through electrons oscillating in wires of electric circuits. The sun's radiation is most intense in the infrared region. A vertical automobile antenna is sensitive to electric fields polarized vertically. Radio waves have wavelengths longer than 1 m.Explanation / Answer
(1) ans
(2)False because the radiwaves and visble lights are travels same speed
(3)False because the x-ray and visble lights travels same speed
(4)False because the earth atomsphere is more effective
(5)True basing on the concept of e/m method
(6)Ture because sun radiation contains contains different wave lengths
(7)True
(8) True ,The Earth's atmosphere is quite transparent to infrared radiation. Blue light has a higher frequency than X-rays. A vertical automobile antenna is sensitive to electric fields polarized vertically.